<template>
  <div id="app">
    <p @click="changeName">{{name}}</p>
    <ul>
      <li v-for="(item, index) in list" :key="index">{{item}}</li>
    </ul>
    <button @click="addItem">添加一项</button>
  </div>
</template>

<script>
export default {
  name: "app",
  data() {
    return {
      name: "vue",
      list: ["a", "b", "c"]
    };
  },
  methods: {
    changeName() {
      this.name = "双越";
    },
    addItem() {
      this.list.push(`${Date.now()}`);
    }
  }
};
</script>

